CVE-2025-53365 Information

Jul 05, 2025 cve

Description

The MCP Python SDK called mcp on PyPI is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.10.0 if a client deliberately triggers an exception after establishing a streamable HTTP session this can lead to an uncaught ClosedResourceError on the server side causing the server to crash and requiring a restart to restore service. Impact may vary depending on the deployment conditions and presence of infrastructure-level resilience measures. Version 1.10.0 contains a patch for the issue.

Reference

https://github.com/modelcontextprotocol/python-sdk/commit/7b420656de48cfdb90b39eb582e60b6d55c2f891 https://github.com/modelcontextprotocol/python-sdk/pull/967 https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-j975-95f5-7wqh

CNNVD-202507-508 (Published: 2025-07-04)

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